linux-kernel - [PATCH v2 3/4] hwmon: tmp108: Add support for I3C device

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Message-Id: <20241108-p3t1085-v2-3-6a8990a59efd@nxp.com>
Date: Fri, 08 Nov 2024 17:26:57 -0500
From: Frank Li <Frank.Li@....com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Jonathan Cameron <jic23@...nel.org>, 
 Lars-Peter Clausen <lars@...afoo.de>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, Jean Delvare <jdelvare@...e.com>, 
 Guenter Roeck <linux@...ck-us.net>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-iio@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, Krzysztof Kozlowski <krzk@...nel.org>, 
 linux-hwmon@...r.kernel.org, Frank Li <Frank.Li@....com>
Subject: [PATCH v2 3/4] hwmon: tmp108: Add support for I3C device

Add support for I3C device in the tmp108 driver to handle the P3T1085
sensor. Register the I3C device driver to enable I3C functionality for the
sensor.

Signed-off-by: Frank Li <Frank.Li@....com>
---
 drivers/hwmon/tmp108.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/drivers/hwmon/tmp108.c b/drivers/hwmon/tmp108.c
index bfbea6349a95f..83d6847cb542c 100644
--- a/drivers/hwmon/tmp108.c
+++ b/drivers/hwmon/tmp108.c
@@ -13,6 +13,8 @@
 #include <linux/mutex.h>
 #include <linux/of.h>
 #include <linux/i2c.h>
+#include <linux/i3c/device.h>
+#include <linux/i3c/master.h>
 #include <linux/init.h>
 #include <linux/jiffies.h>
 #include <linux/regmap.h>
@@ -442,6 +444,35 @@ static struct i2c_driver tmp108_driver = {
 
 module_i2c_driver(tmp108_driver);
 
+#ifdef CONFIG_REGMAP_I3C
+static const struct i3c_device_id p3t1085_i3c_ids[] = {
+	I3C_DEVICE(0x011b, 0x1529, NULL),
+	{},
+};
+MODULE_DEVICE_TABLE(i3c, p3t1085_i3c_ids);
+
+static int p3t1085_i3c_probe(struct i3c_device *i3cdev)
+{
+	struct regmap *regmap;
+
+	regmap = devm_regmap_init_i3c(i3cdev, &tmp108_regmap_config);
+	if (IS_ERR(regmap))
+		return dev_err_probe(&i3cdev->dev, PTR_ERR(regmap),
+				     "Failed to register i3c regmap\n");
+
+	return tmp108_common_probe(&i3cdev->dev, regmap, "p3t1085_i3c");
+}
+
+static struct i3c_driver p3t1085_driver = {
+	.driver = {
+		.name = "p3t1085_i3c",
+	},
+	.probe = p3t1085_i3c_probe,
+	.id_table = p3t1085_i3c_ids,
+};
+module_i3c_driver(p3t1085_driver);
+#endif
+
 MODULE_AUTHOR("John Muir <john@...ir.com>");
 MODULE_DESCRIPTION("Texas Instruments TMP108 temperature sensor driver");
 MODULE_LICENSE("GPL");

-- 
2.34.1